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Mary E Garner et al.
Dalton transactions (Cambridge, England : 2003), 44(4), 1914-1923 (2014-12-10)
This work describes several synthetic approaches to append organic functional groups to gold and silver N-heterocyclic carbene (NHC) complexes suitable for applications in biomolecule conjugation. Carboxylate appended NHC ligands (3) lead to unstable Au(I) complexes that convert into bis-NHC species
Mesmerized by mercury.
Joel D Blum
Nature chemistry, 5(12), 1066-1066 (2013-11-22)
Arpita Basu et al.
The Journal of nutrition, 144(6), 830-837 (2014-03-29)
Dietary flavonoid intake, especially berry flavonoids, has been associated with reduced risks of cardiovascular disease (CVD) in large prospective cohorts. Few clinical studies have examined the effects of dietary berries on CVD risk factors. We examined the hypothesis that freeze-dried
A N Fonteh et al.
Amino acids, 32(2), 213-224 (2006-10-13)
Our aim was to determine changes in free amino acid (FAA) and dipeptide (DP) concentrations in probable Alzheimer's disease (pAD) subjects compared with control (CT) subjects using liquid chromatography and electrospray ionization tandem mass spectrometry (LCMS2). We recruited gender- and
Takashi Abe et al.
Journal of neuroscience research, 70(3), 447-450 (2002-10-23)
To investigate the possible role of oxidative RNA damage in the pathogenesis of Alzheimer's disease (AD), the concentrations of the oxidative stress marker 8-hydroxyguanosine (8-OHG) were measured in the cerebrospinal fluid (CSF) and the serum of patients with AD and
S L Grokhovskiĭ et al.
Biofizika, 58(1), 36-46 (2013-05-09)
We investigated a phenomenon of ultrasonic cleavage of DNA complexed with transition metal cations Ag(I), Cu(II) and Hg(II). We found the statistically significant dependence of relative intensity of cleavage on cation type and concentration. Each cation may cause two different
Martha Carvalho Pereira Teixeira et al.
International journal of environmental research and public health, 12(11), 14084-14093 (2015-11-06)
Little is known about the health-related quality of life of former lead workers. Using the Short-Form 36 Questionnaire (SF-36), a cross-section design study evaluated the health-related quality of life of 186 former workers of a lead smelter that operated in
Wilma Neumann et al.
ChemMedChem, 10(1), 183-192 (2014-10-17)
Cyclooxygenase (COX) is an enzyme involved in tumorigenesis and is associated with tumor cell resistance against platinum-based antitumor drugs. Cisplatin analogues were conjugated with COX inhibitors (indomethacin, ibuprofen) to study the synergistic effects that were previously observed in combination treatments.
Sin-Ling Wang et al.
Molecules (Basel, Switzerland), 20(11), 20912-20925 (2015-11-28)
In the current study, two new flavones, 4'-O-geranyltricin (1) and 3'-O-geranylpolloin (2), and a new 2-(2-phenylethyl)-4H-chromen-4-one derivative, 7-hydroxyl-6-methoxy-2-(2-phenylethyl)chromone (3), have been isolated from the stem barks of A. sinensis, together with 21 known compounds 4-24. The structures of new compounds
Douglas H Adams et al.
Ecotoxicology and environmental safety, 102, 196-201 (2014-02-11)
Blue crabs, Callinectes sapidus, from the Atlantic coast of Florida were analyzed for total mercury, methylmercury, lead, and cadmium. Paired samples of two tissue types were analyzed for each crab, (1) muscle tissue (cheliped and body muscles) and (2) whole-body
Alain Manceau et al.
Environmental science & technology, 49(16), 9787-9796 (2015-07-15)
Methylmercury is the environmental form of neurotoxic mercury that is biomagnified in the food chain. Methylation rates are reduced when the metal is sequestered in crystalline mercury sulfides or bound to thiol groups in macromolecular natural organic matter. Mercury sulfide
Stephen J McKean et al.
Environmental health : a global access science source, 14, 62-62 (2015-07-23)
Methylmercury (MeHg), known for well over a century as a neurotoxin in adults, has more recently been studied for potential detrimental effects during early brain development. While several studies have estimated mercury exposure, they usually rely on either a single
Swathi Kaliki et al.
Ophthalmology, 122(6), 1165-1172 (2015-04-07)
To identify the clinical features predictive of high-risk retinoblastoma on histopathology. Case-control study. A total of 145 cases with histopathologic high-risk features of retinoblastoma and 258 controls without high-risk features. Enucleation and adjuvant chemotherapy. High-risk features on histopathology were defined
Laura L Romero-Hernández et al.
European journal of medicinal chemistry, 99, 67-81 (2015-06-06)
The stereoselective preparation of diosgenin-derived thio(seleno)ureas and glycomimetics bearing a 1,2,3-triazolyl tether on C-3 has been accomplished. The key steps in the synthetic pathway are the incorporation of an amino moiety and its further transformation into thio- and selenoureas, and
Meiqin Wu et al.
Journal of environmental sciences (China), 25(2), 386-392 (2013-04-20)
Mercury (Hg) is a well-known neurotoxicant. Hg exposure at high levels can harm individuals of all ages. Even low level exposure to Hg can damage the brain of fetuses and young children, and affect their central nervous system and cognitive
Zdravko Spirić et al.
Environmental monitoring and assessment, 186(7), 4357-4366 (2014-04-16)
Moss samples from four dominant species (Hypnum cupressiforme, Pleurozium schreberi, Homalothecium sericeum and Brachythecium rutabulum) were collected during the summer and autumn of 2010 from 121 sampling sites evenly distributed over the territory of Croatia. Samples were totally digested by
A Toumi et al.
Physical chemistry chemical physics : PCCP, 17(45), 30352-30363 (2015-10-29)
Low-temperature Ar matrix isolation has been carried out to investigate the infrared spectrum of ethyl cyanide (CH3CH2CN), a molecule present in the atmosphere of Titan. The λ > 120 nm and λ > 230 nm photolysis reactions of ethyl cyanide
Felipe André dos Santos et al.
Archives of environmental contamination and toxicology, 69(2), 223-229 (2015-05-20)
This study aimed to identify metalloproteins that lose their metal ions in the presence of mercury (Hg) and bind to Hg in breast milk samples collected from the riverine population of the Madeira River, a tributary of the Amazon River.
Nicoletta Basilico et al.
Bioorganic & medicinal chemistry, 23(15), 4681-4687 (2015-06-18)
A series of new quaternary ammonium salts containing a polyconjugated moiety has been synthesized and characterized; their biological activity as potential antimalarial agents was investigated, as well. All compounds were screened against chloroquine resistant W-2 (CQ-R) and chloroquine sensitive, D-10
Marcelo Farina et al.
Neurochemistry international, 62(5), 575-594 (2012-12-26)
Essential metals are crucial for the maintenance of cell homeostasis. Among the 23 elements that have known physiological functions in humans, 12 are metals, including iron (Fe) and manganese (Mn). Nevertheless, excessive exposure to these metals may lead to pathological
Koji Yachiguchi et al.
Zoological science, 31(5), 330-337 (2014-05-17)
To evaluate the effects of inorganic mercury (InHg) and methylmercury (MeHg) on bone metabolism in a marine teleost, the activity of tartrate-resistant acid phosphatase (TRAP) and alkaline phosphatase (ALP) as indicators of such activity in osteoclasts and osteoblasts, respectively, were
Bryan Adlard et al.
The Science of the total environment, 500-501, 302-313 (2014-09-19)
Under the North American Commission for Environmental Cooperation (CEC) and its Sound Management of Chemicals (SMOC) program, a tri-national human contaminant monitoring initiative was completed to provide baseline exposure information for several environmental contaminants in Canada, Mexico and the United
Ajoy Pal et al.
Dalton transactions (Cambridge, England : 2003), 44(34), 15304-15315 (2015-06-26)
A 3-aminomethyl-(2-amino-1-pyridyl) coupled amino-ethyl-rhodamine-B based probe (2) exhibited simultaneous chromogenic and fluorogenic dual mode signaling responses in the presence of Hg(II) ions only among all the metal ions investigated in an organic aqueous medium. The spiro-cyclic rhodamine signaling subunit undergoes
Zhong-Yi Liu et al.
Dalton transactions (Cambridge, England : 2003), 44(46), 19927-19934 (2015-10-31)
The crystal structures and magnetic behaviours of two water-bridged one-dimensional (1D) cobalt(II) chains with different isomeric naphthoate (na(-)) terminals, [Co(H2O)3(2-na)2]n (1) and {[Co(H2O)3(1-na)2]·2H2O}n (2), were reported to investigate the effect of interchain distance on their magnetic properties. Complex 1 with
Colleen A Kellenberger et al.
RNA biology, 12(11), 1189-1197 (2015-06-27)
Cyclic di-GMP (c-di-GMP) is a second messenger that is important in regulating bacterial physiology and behavior, including motility and virulence. Many questions remain about the role and regulation of this signaling molecule, but current methods of detection are limited by
Katie A Henry et al.
Ecotoxicology (London, England), 24(3), 520-526 (2014-12-19)
Long-term, sublethal methylmercury exposure can cause reproductive depression, immune suppression, endocrine disruption and other problems in birds. We used two biomarkers to detect oxidative stress in livers of zebra finches (Taeniopygia guttata) developmentally exposed to sublethal levels of dietary methylmercury
Jian Zhou et al.
Dalton transactions (Cambridge, England : 2003), 44(16), 7203-7212 (2015-03-20)
A series of new lanthanoid thioarsenates [Ln(teta)(μ-η(1):η(2):η(1)-As(III)S3)]n {Ln = Ce (Ia), Pr (Ib), Nd (Ic), and Sm (Id); teta = triethylenetetramine} and [Ln(teta)(en)(μ-η(1):η(1):η(1)-As(V)S4)]n {Ln = La (IIa), Ce (IIb), Pr (IIc), and Nd (IId); en = ethylenediamine} were prepared by
Emily C Somers et al.
Environmental health perspectives, 123(8), 792-798 (2015-02-11)
Immune dysregulation associated with mercury has been suggested, although data in the general population are lacking. Chronic exposure to low levels of methylmercury (organic) and inorganic mercury is common, such as through fish consumption and dental amalgams. We examined associations
Comments on neonatal hair-Hg and birth weight in China: mercury in rice and fish.
José G Dórea
Environmental pollution (Barking, Essex : 1987), 184, 654-654 (2013-10-08)
Rima Obeid et al.
Clinical chemistry, 53(6), 1129-1136 (2007-03-27)
Increased plasma total homocysteine (tHcy) is a risk factor for neurological diseases, but the underlying pathophysiology has not been adequately explained. We evaluated concentrations of tHcy, S-adenosyl homocysteine (SAH), S-adenosyl methionine (SAM), folate, and vitamin B(12) in cerebrospinal fluid (CSF)
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